Numerical Simulation of SiO2 Fouling While Evaporating High Concentration Extracted Oil Wastewater

Abstract

This article aims at fouling situation while extracted oil wastewater evaporating and has analyzed the change process in wastewater SiO2. We point out influence of the formation of fouling SiO2 pre-condition—supersaturation and establish SiO2 crystallization precipitation model and equation. The results show that concentration ratio and evaporation temperature increase to help fouling formation to give rise to fouling heat resistance elevating. The increase of extracted oil wastewater flow rate loop reduce the fouling heat resistance and improve the efficiency of heat utilize. Through simulation , we master main influencing factors of fouling heat resistance and grain a good foundation to design the experiment scheme in the future.